99.99% of humans are eating degraded, under nutritional foods, even if they are so called organic and vegan. This is because most do not eat raw, freshly picked truly organic food, say from your own garden or farmers market for every meal every day. Also there are poisons in the earth, water and air in this age and this prevents food from having proper nutritional content. Digestive trouble is probably some form of parasite, as 1 out of every 7 humans have them and they cause all manner of physical and mental problems. Also proper exercise is needed along side a mostly if not all fully raw vegan diet for optimum health. You can see my Yin Yoga series for more details on the best methods.